Air discharge structure of industrial cabinet

ABSTRACT

An air discharge structure of an industrial cabinet comprises at least one duct and at least one heat dissipating device, and the duct is installed at the rear and/or both sides of the industrial cabinet, and the heat dissipating device is installed at the top of the industrial cabinet and has at least one air inlet and at least one air outlet coupled to the top for extracting and discharging internal hot air of the industrial cabinet to the outside. The duct has a size corresponding to the size of a plurality of pillars of the industrial cabinet, so that the duct will not occupy the internal using space of the industrial cabinet.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to the technical field of a housing ofelectric equipments or components, in particular to an air dischargestructure of an industrial cabinet having a plurality of through holesformed on a surface of a duct, and internal hot air are extracteduniformly from one of the sides other than the front side of theindustrial cabinet and discharged from the top of the cabinet.

2. Description of the Related Art

In general, the industrial computer cabinet is used for containing aplurality of electronic equipments such as industrial computers orsevers, and the temperature in the industrial computer cabinets will beincreased by the heat generated during the operation of the electronicequipments. To prevent abnormality of the electronic equipments due tohigh temperature, the industrial computer cabinets generally come with aplurality of extraction fans installed at the rear of the computercabinets for extracting internal hot air from the rear to the outside,and an airflow is produced to drive external cold air to flow into thecomputer cabinets from the front side to dissipate the heat. However,the industrial computer cabinets are installed in an air-conditionedengine room of a constant temperature. With the characteristics of therising hot air and the descending cold air, air sucked from the frontside is not the cold air with the lowest temperature around, so that theinternal temperature of industrial computer cabinet cannot be loweredimmediately.

To overcome the aforementioned problem, an electronics cabinet coolingsystem is disclosed in U.S. Pat. No. 6,127,663. With reference to FIG. 1for a schematic view the electronics cabinet cooling system as disclosedin U.S. Pat. No. 6,127,663, the electronics cabinet 1 comprises at leastone fan 10 installed at the top of the electronics cabinet 1, aventilation opening 11 formed at the bottom of the electronics cabinet1, a duct 12, and a subrack 13 for carrying a plurality of electronicequipments, and the fan 10 draws internal hot air of the electronicscabinet 1 to speed up an air flow, such that the cold air outside thebottom of the electronics cabinet 1 flows through the ventilationopening 11, and then the duct 12 directs the cold air to the subrack 13to lower the internal temperature. In other words, the subrack 13 andthe electronic equipments are installed between the fan 10 and the duct12, so that the airflow is blocked to reduce the flow rate and the heatdissipating efficiency.

SUMMARY OF THE INVENTION

In view of the problems of the prior art, it is a primary objective ofthe present invention to provide an air discharge structure of anindustrial cabinet, wherein a vertical duct is provided for drawing hotair from each position inside the industrial cabinet uniformly, and thenthe heat dissipating device installed at the top of the industrialcabinet is provided for discharging the hot air to enhance the heatdissipating effect.

To achieve the foregoing objective, the present invention provides anair discharge structure of an industrial cabinet, and the dischargestructure is installed inside the industrial cabinet and comprises atleast one duct and at least one heat dissipating device, and the duct isinstalled on at least one of the side panels other than the front paneland having a plurality of through holes, such that a channel is formedinside the duct for guiding air. The heat dissipating device isinstalled at the top of the industrial cabinet and has at least one airinlet and at least one air outlet, and the air inlet is coupled to theduct, and the heat dissipating device draws internal hot air from theindustrial cabinet through the through holes, and the duct directs thehot air to pass through the air inlet and then discharge from the airoutlet.

Wherein, the heat dissipating device is a vortex fan, and the duct iscombined and installed at the rear side of the industrial cabinet, ortwo ducts are installed on both lateral sides of the industrial cabinetrespectively.

In addition, the industrial cabinet is installed in an engine room withconstant-temperature air-conditioning to prevent the hot air dischargedfrom the heat dissipating device increases the temperature inside theengine room to affect the heat dissipating effect. The air dischargestructure of an industrial cabinet further comprises a heat collectioncover, an air guide tube and an air guide fan, wherein the heatcollection cover is provided for connecting the air outlet to gather hotair, and an end of the air guide tube is coupled to the heat collectioncover and the other end of the air guide tube is coupled to the outside.If a plurality of industrial cabinets is combined for use, the airdischarge structure further comprises an air collection box coupledbetween the air guide tubes and the outside to gather the hot airdischarged from the industrial cabinets and then discharge the hot airto the outside. Further, the air guide fan is installed at a middlesection of the air guide tube for guiding and discharging the hot air tothe outside compulsorily.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an electronics cabinet cooling system asdisclosed in U.S. Pat. No. 6,127,663;

FIG. 2 is an exploded view of an exemplary embodiment of the presentinvention;

FIG. 3 is a schematic view of an exemplary embodiment of the presentinvention;

FIG. 4 is a cross-sectional view of an exemplary embodiment of thepresent invention;

FIG. 5 is a schematic view of another exemplary embodiment of thepresent invention; and

FIG. 6 is a schematic view of a further exemplary embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The technical contents of the present invention will become apparentwith the detailed description of preferred embodiments and theillustration of related drawings as follows.

With reference to FIGS. 2 to 4 for an exploded view, a schematic viewand a cross-sectional view of a preferred embodiment of the presentinvention respectively, an air discharge structure 2 of an industrialcabinet 3 is installed inside the industrial cabinet 3, and theindustrial cabinet 3 is substantially in the shape of a rectangular boxand comprises a top cover panel 30, a bottom retaining panel 31, a doorpanel 32 disposed at a front side of the industrial cabinet 3 and aright panel 33, a left panel 34 and a rear panel 35 disposed at theremaining three sides of the industrial cabinet 3 respectively. Pillars36 are separately and vertically disposed at four corners of the topcover panel 30, and a plurality of electronic equipments 4 is installedbetween the pillars 36 to form plurality of installation spaceshorizontally stacked on top of one another, and the top cover panel 30has a top panel 37 disposed there below. The door panel 32 includes anair inlet 320 formed thereon for drawing nearby air into the industrialcabinet 3 to speed up the airflow inside the industrial cabinet 3. Theair discharge structure 2 comprises a heat dissipating device 21 and aduct 20.

The heat dissipating device 21 is installed on the top panel 37 and hasan air inlet 210 and an air outlet 211. In this preferred embodiment,the heat dissipating device 21 is a vortex fan for producing a suctionforce.

An end of the duct 20 is coupled to the air inlet 210, and the duct 20has a plurality of through holes 200 formed on a surface of the duct 20,so as to form a channel therein for guiding air. In addition, the duct20 has a size corresponding to the size of the pillars 36. In thispreferred embodiment, the duct 20 is substantially in the shape of arectangular box and installed between the pillars 36 in the rear panel35, so that the duct 20 will not occupy any using space inside theindustrial cabinet.

When use, the through holes 200 are provided for sucking hot airdischarged from the electronic equipments 4 inside the industrialcabinet 3, and the duct 20 is provided for directing the hot air throughthe air inlet 210 and then discharging the hot air from the air outlet211 to enhance the heat dissipating effect. In addition, the air outlet211 can be formed at the top side, both left and right side, or the rearside of the top cover panel 30, and the air inlet 210 is formed on bothleft and right edges or a rear edge of the top panel 37 and at aposition corresponding to the duct 20. Further, a gauze or a filter canbe installed to the air inlet 210, the air outlet 211 and the air inlet320 to reduce the chance for external dust or foreign substances toenter the industrial cabinet 3 and prevent the electronic equipments 4from being damaged by the dust or foreign substances.

In addition, the industrial computer cabinet 3 is installed in anair-conditioned engine room of a constant temperature, the air dischargestructure 2 further comprises a heat collection cover 22 and an airguide tube 23 in case the temperature in the engine room will beincreased or the heat dissipating effect will be affected by the hot airdischarged from the heat dissipating device 21. The heat collectioncover 22 is coupled to the air outlet 211, and an end of the air guidetube 23 is coupled to the heat collection cover 22 and the other end ofthe air guide tube 23 is coupled to the outside. After the heatcollection cover 22 gathers the hot air, the hot air is directed by theair guide tube 23 and discharged to the outside, so as to maintain theengine room at a low temperature and assure the heat dissipatingefficiency.

With reference to FIG. 5 for a schematic view of another exemplaryembodiment of the present invention together with FIG. 2, the top panel37 has two heat dissipating devices 21 installed thereon for improvingthe effect of drawing air, and two ducts 20 can be installed between thepillar 36 and the right panel 33, and the pillar 36 and the left panel34 to speed up the suction of hot air. Further, an air guide fan 230 isinstalled at a middle section of the air guide tube 23 for driving thehot air to the outside compulsorily, speeding up the airflow, andenhancing the heat dissipating efficiency. Since the cold air flowsdownward, an air inlet 310 can be designed at the bottom retaining panel31 for drawing cold air proximate from the ground into the cabinet toenhance the speed of lowering the temperature.

With reference to FIG. 6 for a schematic view of a further exemplaryembodiment of the invention, if the industrial cabinets 3 are combinedfor use, the air guide tubes 23 can be coupled to an air collection box24 directly, or coupled to an air collection tube 240 first, and thencoupled to the air collection box 24 through the air collection tube240, so as to gather the hot air discharged from the industrial cabinets3 at the air collection box 24, and finally discharge the hot air to theoutside through the air collection box 24.

In summation, the air discharge structure 2 of the industrial cabinet 3of the present invention draws hot air through the duct 20 and uses theheat dissipating device 21 at the top of the industrial cabinet 3 todischarge the hot air to the outside, and the air discharge structure 2can also be a box or a case installed at the top of the industrialcabinet 3, and the duct 20 is coupled to the air discharge structure 2.

What is claimed is:
 1. An air discharge structure of an industrialcabinet, installed inside the industrial cabinet, comprising: at leastone duct, installed on at least one of side panels other than a frontpanel and having a plurality of through holes, such that a channel isformed inside the duct for guiding air; and at least one heatdissipating device, installed at a top of the industrial cabinet, andhaving at least one air inlet and at least one air outlet, and the airinlet being coupled to the duct, and the heat dissipating device drawinghot air from the industrial cabinet through the through holes, such thatthe duct directs the hot air to pass through the air inlet and thendischarges the hot air from the air outlet.
 2. The air dischargestructure of an industrial cabinet as recited in claim 1, wherein theheat dissipating device is a vortex fan.
 3. The air discharge structureof an industrial cabinet as recited in claim 1, further comprising aheat collection cover for connecting the air outlet and gathering hotair.
 4. The air discharge structure of an industrial cabinet as recitedin claim 3, further comprising an air guide tube with an end coupled tothe heat collection cover and the other end coupled to the outside. 5.The air discharge structure of an industrial cabinet as recited in claim4, further comprising an air guide fan installed at a middle section ofthe air guide tube and provided for guiding and discharging air to theoutside compulsorily.
 6. The air discharge structure of an industrialcabinet as recited in claim 4, further comprising an air collection boxcoupled to the air guide tubes and the outside, gathering hot airdischarged from the industrial cabinets and discharging hot air to theoutside, if a plurality of industrial cabinets being used.
 7. The airdischarge structure of an industrial cabinet as recited in claim 1,wherein the duct is combined and installed at the rear of the industrialcabinet.
 8. The air discharge structure of an industrial cabinet asrecited in claim 1, wherein the duct comes with a quantity of two andthe ducts are installed on both left and right sides of the industrialcabinet respectively.